Lubricator.



C. S. BARNARD.

LUBRICATOR. APPLICATION r1120 APR-9,1915.

rm: COLUMBIA PLANOGRAPH cu., WASHINGTON, D. c.

Patented Jan. 18, 1916.

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Patented Jan 18, 1916,

Application filed April 9, 1915. serial No. 20,210.

To all whom it may concern:

Be it known that I, CHARLES S. BARNARD, a. citizen of the United States,residing at the clty of Bridgeport, county of Fairfield, State ofConnecticut, have invented certain new and useful Improvements inLubricators; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to certain new and useful improvements inlubricators, and the primary object of the invention is to provide alubricator which has novel means incorporated therein whereby the devicemay be supplied with oil from or at its top and may be applied inposition by means of a screw driver from said top without interferencefrom a movable closure that normally closes the lubricant inlet.

A further object of the invention is to provide improved means forsecuring the closure in position and for limiting movement of thelatter.

In the drawings: Figure 1 is a side elevation; Fig. 2 is a section onthe line 2-2 of Fig. 8; Fig. 3 is a top plan view; Fig. i is a similarview showing the closure in open position; and Fig. 5 is a section onthe line 5-5 of Fig. 1.

Ihe lubricator is composed of a hollow body 1 threaded at its lower endat 2. The body is preferably of cylindrical form and has an integral top3 in which is formed a screw driver receiving slot 4. Arranged to oneside of the slot 4 is an inlet 5 of a size adapted to receive the spoutof an oil can whereby oil may be fed into the lubricator body from thetop of the latter. The body 1 below the top thereof is formed with anarcuate slot 6 providing shoulders 7 and S in which slot is received anarcuate lip 9 formed on the annular skirt or flange 10 of the segmentalcover or closure 11. The flange or skirt 10 is knurled or otherwiseroughened at 12 so as to provide a finger gripping surface to enable theclosure to be easily rotated to open and closed positions. The ends ofthe lip 9 form stops 13 and 14 which are engageable with the stops 7 and8 respectively, whereby it will be seen that whenthe stops 8 and 14:engage, the chord of the segmentaltop 11 registers with and completelyexposes thescrew-driver slot 1 as shown in Fig. 3, and when the stops 7and 13 engage the chord of the segment traverses slot 1 and uncovers thefilling inlet 5, as depicted in Fig. i of the drawings. Thus the presentinvention entirely dispenses with the necessity of an inlet in the sideof the lubricator body and enables said inlet to be placed in the top ofthe body,

which latter location is obviously more convenient and accessible and isthe most natural way of introducing lubricant into the body.

What is claimed is:

1. In a lubricator, a body having a threaded open end and having a topon its opposite end provided with a lubricant inlet, said top having ascrew-driver receiving slot to one side of the inlet and said bodyhaving an arcuate groove the ends of which form stops, and a cap on thebody having a segmental top and a flange which rotates over the body,the free edge of the flange having an arcuate lip which projects intothe groove, the ends of said lip forming stops which coact' with thefirst named stops whereby the cap when engaged with one of the firstnamed stops uncovers the inlet and when engaged with the other of thefirst named stops the chord of the segment alines with said screw-driverreceiving slot.

2. In a lubricator, a hollow body having a top with a lubricant inlettherein and having its opposite end threaded, said top having ascrew-driver receiving slot therein, and a cap rotatable on the body andhaving a segmental top the chord of which in one position of the capalines with said slot and in a second position uncovers the inlet. 3.1alubricator composed of a hollow body having a top with an inlet in thelatter and having screw threads on its bottom end, said top having atool receiving slot therein, and a closure for the top having asegmental top which in one position covers the inlet and in a secondposition the chord of the closure top registers with the slot.

4. A lubricator composed of a hollow body having a top provided with aslot and an inlet and having screw threads on its bottom end, and aclosure for the top having a cutaway part enabling same to completelyexpose the slot in one position and to cover the inlet in a secondposition.

5. A lubricator composed of a hollow body having a top provided with aslot and an inlet and having'screw threads on In testimony whereofI-aflix my signature its bottom end, and a closure for the top, inpresence of two Witnesses.

- said closure beingrot atable on' the top so CHARLES S. 'BARNARD; as tocover the inlet in one position and. to' Witnesses: I 5 completelyexpose the slot in a second posi- JOHN'E. MULLER,

- tion; IvLB. MORRILL.

I Copies of this etent may be obtained for five cents eech, Byaddressing the Commissioner of latents,

' WashingtomD. c.

